Hi, Brian Fallon

Thanks for your help. 

So basically that I couldn't change the textBox1's size and couldn't click the ultraDateTimeEditor1's dropdown button, is that correct?

Thanks for your concern.

Q: Is the EditingControl is automatically resized by the ControlContainerEditor to fit the cell it is being displayed in?

A: Yes. It uses the PreferredSize property of the control assigned to the RenderingControl property.

Q: If so, what should I do if I want to select a date from ultraDateTimeEditor1? Is it possible?

A: UltraDateTimeEditor is a dropdown control, and the dropdown calendar does not appear until the dropdown button is clicked. You can programmatically make the dropdown appear by calling the DropDown method.

Hi, Dimitar

Thanks for your help.

As the help link showed, I was trying with the ControlContainerEditor, and here is what I got:

I'm using an UltraDateTimeEditor as the RenderingControl and a TextBox as the EditingControl, then I set the Editor's(class that extends ControlContainerEditor) object to a UltraWinGrid's cell.

  Editor editor = new Editor(this.ultraDateTimeEditor1, this.textBox1);

  ColumnsCollection columns = this.ultraGrid1.DisplayLayout.Bands[0].Columns;

  columns["XXX"].Editor = editor;

What my question is: 

Is the EditingControl is automatically resized by the ControlContainerEditor to fit the cell it is being displayed in? If so, what should I do if I want to select a date from ultraDateTimeEditor1? Is it possible?

Thanks for your concern.